Automatic speed-controller.



AUTOMATIO SPEED CONTROLLER.

4 w A A 5. l C. E. PALMER.

LPPLIGATIDB FILED LUG. 14,1808.

L 924,266.Y Patented June 8,1909.

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` understood that CHARLES EDWARD PALMER, OF SPOKANE, 'fSllIh'GTOh'.v

AUTOMATIC SPEED-CONTROLLER.

Speeeati'on of Letters Patent.

Application led August 14, 1908. Serial No. 448,456.

To all 'whom it may concern:

i the space between the cylinders is disposed Be it known that I, CHARLES E. PALM-ER, a g a bracket 5, which is keyed to the shaft 3.

subject of the King of Great. Britain, and a resident of Spokane, in the county of Spokane and State of Washington, have invented a new and Im )roved Automatic Speed-Controller, of whic the following is a full, clear, and exact description.

Bly-invention relates to automatic sneed controllers which are especially devise for use on fire esca es, but it will be understood that they may e used for various other purposes. A sprocket Whe-el is provided, over which a sprocket chain is disposed,'the object being to control the speed of the sprocket chain automatically.' The sprocket Wheel is secured to a cylinder and to an internal gear ivlieel, which meshes with pinions, which in turn mesh with a pinion secured to a rotary piston disposed in a cylinder which contains a fluid, the cylinder and the rotary piston rotating ino posite directions Awhen the device is o erate A .valve inthe cylinder is-nornia y disposed vieldingly in a direction 0pposite to that of the Bow of the fluid when driven by the piston, which tends to close the valve and retard the rot ation of t-he cylinder and the piston when Atheir speed becomes excessive. Means are also provided for regulating the means to keep the valves open.

Other objects of the invention will appear in the following more complete description of the invention. A I

In this specification I will describe the referred form of in invention, but it wil be do not limit myself thereto, as I consider myself entitled to all forms and embodiments of the invention which may be held to fall- Within the scope .of the ap ended claims. eference is to be had to the accompanying drawings, forming a part of 'this specification, in which similar characters-v of reference indicate corresponding parts in both figures,

F'Uure 1 is a sectional view on the line 1--1 of Fig. 2; and Fig. 2 is a sectional view on the line 2--2 of Fig. 1. v

Byreferring to the drawings, it will be p seen that companion cylinders 2 are secured The shaft 3 is keyed to bearings 6, one at either end of the shaft. It will, therefore, be seen that neither the shaft 3, nor the bracket 5 will rotate, they being secured. as has been stated, in the bearings 6. On the bracket 5 are mounted piiiions 7 which mesh with the inner gear wheel 4, and these piiiions 7 mesh Patented .nine s, 1909. i

with pinioiis S, which are secured to hollow shafts 9, mounted on the shaft 3, and to these hollow shafts 9 are secured rotary pistons 10, having projectingT surfaces 11, which are adapted to rotate in close proximity to the inner surfaces of the cylinders 2. The sides of the cylindeis 2 are continued inwardly until they pass the rotary pistons 10, and the space between the rotary istons 10 and the cylinder 2, is iilled Wit a fluid. Means may be provided i'or confining the fluid to this space, or, if found expedient, the cylinders 2 and the rotary pistons 10, may both be filled with the fiuid. ln each of the cylinders '2, there is a valve chamber 12, in which is disposed a valve 13, which is pivot-ed to the valve chamber. `These valves 13 have i arms 14, which are connected with s rings 15,

the tension of the springs may be regulated to hold the valves 13 open affainst any desired pressure of the fluid. uclines 17 are secured to the rotary pistons 10 and are disosed a ainst Athe projecting surfaces 11,

t ese inc ines being adapted to lift the valves 13 when they are closed, or nearly; closed, b y the pressure of the fluid driven y the pro- `ecting surfaces 11 around the cylinders 2. tuing boxes 18 are provided, so that when a liquid is used in the cylinders it may be prevented from flowing out along the shaft 3; procket chains 19 are disposed on sprockets 20, of the sprocket wheels 1, and these sprocket chains 19 are connected by rods 21. When the device has been adjusted, it may remain in position for use as a means o reaching the ground in cases of lire, or for other purposes. When used as a tire escape, the person desirous of reaching the ground, may cling to the rods 2l, with the assurance that the speed controller will regulate his descent, by means of the s rocket chains 19 traveling on the sprocket w ieels 1, which are connected with the mechanism, as has lbeen described, for regulating the rotation ofthe cylinders and the rotary pistons which are connected with the said sprocket wheels in the manner set forth. l

Having thus described my invention, I 3o claim as new and desire to secure by Letters Patent:

1. In an automatic speed controller, a cylinder which is adapted to be rotated in one direction, a rotary piston disposed in the cylinder which is adapted to be rotated in a contrary direction, means which are actuated by the cylinder and which are adapted to rotate the said rotary piston, and means which are adapted to retard the rotation of the rotary piston.

2. In an automatic speed controller, a cylinder which is adapted to be rotated in one direction, a rotary piston disposed in the cylinder which is adapted to be rotated in the contrary direction, means which are adapted to be actuated by the cylinder and which are ada ted for rotating the said rotary piston, a Hui in the cylinder, and a valve which is adapted to open in a direction contrary to the normal ow of. the fluid.

Y 3. In an automatic speed controller, a cylinder which is adapted to be rotated in one direction, a rotary piston disposed in the cylinder which is adapted to be rotated in the opposite direction, means to so rotate the rotary iston, a Huid in the cylinder, a valve cham er in the cylinder, and a valve disposed in the valve chamber, the valve being normally open and disposed yieldingly in the direction contrary to the flow of the fluid when the piston is rotated in one direction.

'4. In an automatic speed controller, a cylinder which is adapted to be rotated in one direction, a rotary piston disposed in the cylinder which is adapted to be rotated in the opposite direction, means to so rotate the rotary iston, a fluid in the cylinder, a valve cham er in the cylinder, a valve disposed in the valve chamber, the valve being normally open and dis osed yieldingly in the direction contrary to t e flow of the fluid when the piston is rotated in one direction, and means to regulate the resistance of the valve to the How of the fluid. 5. In an automatic speed controller, a cylinder, a rotary piston disposed therein, a projecting member thereon, the said rotary piston being adapted to be rotated relatively to the cylinder, a fluid in the cylinder, a valve which is held icldingly open and is adapted to be nearly c osed against the rotary piston by the rapid flow of the fluid driven by the projecting surface, and means for lifting the valve to permit the projecting surface on the 63 rotary piston to pass.

6. In an automatic speed controller, a cylinder, a rotary piston disposed therein, a projecting member thereon, the said rotary piston being adapted to be rotated relatively to the cylinder, a fluid in the cylinder, a valve si? l which 1s held yieldingly open and is adapted to be. nearly ciosed against the rotary piston by the rapid flow of the fluid driven by the projecting member, and means on the piston which are adapted to lift the valve to permit the projecting surface to pass.

7. In an automatic speed controller, a sprocket Wheel, a cylinder and internal gear wheel secured thereto, a pinion which meshes 'with the internal gear wheel, a second pinion 8o which meshes with the first pinion, a shaft for the second pinion, a rotary piston disposed Within the cylinder, the shaft of the second pinion being secured to the rotary piston, and means to retard the rotation of 8Ev the rotary piston as its speed increases relatively to the cylinder.

8. In an automatic speed controller, a sprocket wheel, a cylinder and an internal gear Wheel secured thereto, a pinion which `meshes with the internal gear wheel, a second pinion which meshes with the said pinion, a shaft secured to the second pinion, a rotary piston disposed Within the cylinder, the shaft of the second )inion being secured to the rotary piston, a uid in the cylinder, and a valve disposed yieldingly in a direction opposite to the flow of the iuid when driven by the rotation of the piston in one direction.

9. In an automatic s eed controller, a shaft, a cylinder mounte to rotate thereon, a rotary piston disposed in the cylinder, a

rojecting member thereon, means for rotatm0 the cylinder relative to the rotary iston, a duid in the cylinder, a valve disposed) in the cylinder which is adapted for retarding the movement of the cylinder as its speed increases, means for preventing the complete' closing of the valve against the rotary piston, and an incline on the rotary iston leading to the project-ing membervrhic isadapted to lift the valve to permit the projecting member to pass.

10. In an automatic speed controller, a shaft, a cylinder mounted tov rotate thereon, a rotary piston which is also mounted to rotate on the shaft, means to drive the cylinder in one direction, means to drive the rotary piston in the opposite direction, a Huid in the cylinder, a valve which is normally open and is disposed yieldingly in the direction contrary to the iow of the fluid when the piston is rotated in one. direction, and means which V are adapted to open said valve.

11. In an automatic speed controller, a shaft, two cylinders mounted thereon, means for rotating the cylinders, an internal gear wheel, the cylinders being supported by the internal gear Wheel to which they are secured, 130

pinions which mesh with the internal gear l with the internal gear wheel, second pinions \\'l1eel,`sccond pnnons which mesh with the l nst named pnnons, a rotary piston disposed in each ofthe cylinders, hollow shaft-s mounted on the said shaft, to which the rotarj,- pisi tous and second pinions are secured, and i means in the cylinders which are adapted to l retard the rotation of the. rotary pistons and cylinders relatively to each other as their l speed increases. Y

12. In an automatic speed cont-roller, a; shaft., two cylinders mounted thereon,

vsprocket Wheels secured'to the cylinde1s sprocket cliains disposed on the sprocket I Wlreels, an niternal gear Wheel the cylinders belnO' supported by the internal gear Wheel to l Whic i they are secured, pinions which mesh which mesh with tlie ist n' .ed pinions, a rotary pl ders, liollolv shafts mounted on the said shaft, to which the rotary pistons and second pinions are secured, a valve in each of the cylinders, the valve being disposed yieldingly in a position contrary to the flow 25 of the iiuid when the piston is rotated in one direction, and means to open the valve.

In testimony whereof I have signed my name. to this specification in the presence of two subscribing Witnesses.

CHARLES EDWARDY PALMER.

Witnesses H. L. HERKEHATH, JOSEPH LEAF.

disposed in ciao-n of the cylin- 20 

